Loose-leaf binder



Mar. 3. 1925.

1,528,497 H. c. MILLER LOOSELLEAF BINDER Filed Feb. 25, 1924' wag Y m A N; s N

may I m I Patented Mar. 3, 1925.

UNITED. STATES,

, 1,528,497 PATENT OFFICE.

HENRY- C. MILLER, 01? MILWAUKEE, WISCONSIN.

Y LOOSE-LEAF BINDER.

Application filed. February 23, 1924. Serial No. 694,681.

To all whom it may concern:

. Be it known that I, HENRY C. Minna, a

citizen of the United States, and resident of readily clamped to the receiving section andmay be easily detached from the other section.

Further objects are to provide a loose leaf binder in which there areno projecting portions of the posts, in which a ver quick adjustment ma be effected, in whic a key for operating t e device is not required, and

in which the clampingmeans serves also as an aid in uiding the flexible posts or members into t e rbceiving section.

Further objects are to provide a simple type of binder in which the u per and lower sections may be made as unitary members without requiring the, opening of either of such sections to eii'ect adjustments, and 'i'n which a maximum of strength and extreme simplicit is attained. a An em dimentof the invention 1s shown in the accompanying drawings, in which Figure 1 is a vertical sectional view through the binder. such view corresponding to a section on the line 1-1 of Figure 2.

Figure 2 is a horizontal sectional view through the lower section shown in Figure1..

Figure 3 is a transverse view on the line 3-3 of Figure 1. .f

For ease in description, the terms u per and lower sections will be employe although, obviously, the relation of parts may ;be reversed without departing from the spirit of this invention, I

The upper section is composed of an upper channel member 1, and a lower channel member 2ioined by U-shaped end pieces 33 such end pieces being conveniently rivete inf'position with the arms'of-the end pieces received in de ressed portions of the sections .1 and22, as sh own-in. ,Figure 1'. The lower channel member is provided with a pair of apertures within which a pair of sleeves 4: are rigidly secured. These sleeves are provided with beveled or counter sunk upper portions 5 adapted to .ieceive, the heads 6 of the screws, such screws being threaded into the uppermost portions of the flexible posts 7. If desired, slides 8 may be carried'in suitable guides 9 secured to the 11 per side of the upper section 1, and adapts to removably coverthe apertures through such section provided for the screw head 6. It is understood, of course,'that both the upper and the lower sections are covered by suitable material 10 to give a finished appearance to the binder, and, if desired the end members 3 (see Figure 2) may be provided with outer extensions 11 which receive the pintle pins 12 of the covers 13. The lower section is composed of a pair of channel mem: bers 13 and 14 held together by suitable rivets or other means and by the end members 3, as described in connection with the upper section. This lower section is provided with apertures 15 upon its upper side thrdugh which the flexible posts 7 freely P of the upper channel member 1 1 are/up turned, as indicated at 16, to provide entering or guiding lips {Midyll on the inner side of the posts, this upper ciannel member is depressed to provide a curved guiding portion 17 against which the flexible posts are adapted to bind when the locking mechanism hereinafter described functions. The lower channel member 13 is providedwith upturned curved deflectors 18 adapted to aid in guiding the flexible posts inwardly towards each other in the interior of the lower section. Transversely positioned cylindrical locking members or bars 19 and 20 are mounted within the lower section and upon the outerside of the posts 7. These members 19 and 20 also serve, due to their curved shape, as guides for the osts. The member 19 has a rod 21 ri id y attached thereto. This rod extends reely into the member 20,-asmay be seen from Figure 2, and a spring 22 bears a ainst the end of the rod,-the other end of t e spring bearing against a bracket or arm 23 carried by the member 20,-thus operatively interposing the spring 22 between the member 20, and the Adjacent these apertures, the portions second rod 24 is also rigidly secured to the internally threaded sleeve 26 of an adjust-- member 19 and passes freely through the member 20. The projecting end of this rod is threaded and is received within an member 20. Stop pins 29 may be provided to limit the outward motion of the members 19 and 20, such stop pins preferably constituting the rivets by which the end members 3 are secured to the channel members 13 and 1d.

The inner ends of the flexible posts 7 have one end of the tension springs 30 attached thereto, the other ends of such springs bein attached to the rods 21 and 24, as may be seen from Figure 2. This arrangement is preferable but, under certain conditions, it maybe found expedient to provide a single spring connected at its ends to the two posts in an obvious manner, and, under other conditions, it may be found" expedient to dispense wholly with the springs. It is to be noted from Figure 2 that the rods 21 and 22 are bowed outwardly. to provide free operating space therebetween for the enclosed mechanism.

Itis further to be understood. that in place of the linked flexible post 7, wire cables, cord'or leather or other similar mem' bers may be employed and also in place of the springs other resilient means may beused. c

The ospleration of the apparatus is as follows hen it is desired to loosen the binder, it is merely necessary to rotate the manipulating nut thus permitting the -spring 22 to force the members 19 and 20 apart. This allows the upper section to be moved away from the lower section, the flexible posts sliding out from the lower section in a free and easy manner against the tension of the springs 30. After the desired sheet has been inserted or removed, the upper casing is pressed downwardly towards the lower casing and the manipulating screw is again tightened thus forcin the members 19 and 20 against the flexed portion of the post 7,' r ch members 19 and 20 binding between t e post's and the lower channel member 13 of the lower section. This action forces the posts into binding enga ement with the curved pontions 17 of t e upper channel member 14 of the lower section, and thus locks the posts in position.

It is obvious that the posts '51" may be provided with additional removable sections wheredby such posts may be indefinitely exmas er ing key, and which has no projecting post.

It will, further be seen that this loose leaf binder is of sturdy construction and is not likely to get out of order, and may! he cheaply and readily manufactured.

Although the invention has been described in considerable detail, it is to be understood that the invention may be variously embodied and is, therefore, to be limited only as claimed.

I claim:

1. A loose leaf binder comprising an upper section and a hollow lower section, flexible members secured to said upper section and projecting freely into said lower section, a. pair of clamping members positioned within said lower section and adapted to bind against said flexible members, a rod secured to one of said clampingmembers and projecting through the other of said members, and a nut threaded upon said rod and bearing against the last mentioned member 2. A loose leaf binder comprising an up- I and-projecting through: the other of said clamping members, a nut threaded upon said rod and bearing against the last mentioned clampingmember; and a sprin for forcing said clamping members out of binding engagement with said flexible members,

3. A loose leaf binder comprising an upper section and ahollow lower section, flexible members securedto said upper section and projecting freely into said lower section, a pair of c amping members positioned within said lower section and adapted to bind against said flexible members, a rod secured to one of said clamping members and projecting through the other of said clampin members, a nut threaded upon said rod an bearing against the last mentioned clampin member, a second rod secured to one of sai clamping members, and a spring operatively interposed between said rod and the other of said clamping members.

4. A loose leaf binder comprising an upper section having a pair of counter sunk holes therethrough, a lower hollow section having a pair of apertures opening into the hollow interior and having deflector ortions adjacent said apertures, a pair of exible members extending through said apertures into the hollow section and guided b said deflector portion with the free en of such essee? iiexilole members extending towards each other, screws detachably joining the other ends of said flexible members and the upper sections and seated within the countersunk holes in such upper section, a pair of locking members for binding said flexible members to said lower section in any one of an infinite number of positions of adjustment, and a screw for forcing said locking memloers into locking engagement with said flexible members.

5. A loose leaf binder comprising an upper section, a hollow lower section, a pair of flexible posts secured to said upper section and extending into said lower section with their free ends directed towards each other, a pair of cylindrical locking bars extending transversely of and located within said hollow section adjacent each end and upon the outer side of said flexible posts and adapted to guide said posts as they enter said hollow section, a rod secured to one of said bars and passing freely through the other of said bars, and a nut threaded upon said rod and hearing against said last mentioned her, said nut having a manipulating knob located exteriorly of said hollow section.

HENRY G. MILLER. 

